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Bezzdna [24]
3 years ago
9

In the year 2005, a person bought a new car for $24500. For each consecutive year

Mathematics
2 answers:
Dafna1 [17]3 years ago
7 0
$20090

because, in three years it would have depreciated by 18% (9%*3=18) so you would subtract 18% off of $24500
WITCHER [35]3 years ago
5 0

Answer:

18500

Step-by-step explanation:

Percent decrease:

\text{Multiply by }(1-r)=(1-0.09)=(0.91)

Multiply by (1−r)=(1−0.09)=(0.91)

2005: \color{green}{24500}

2005:24500

2006: \color{green}{24500} (0.91) = \color{blue}{22295}

2006:24500(0.91)=22295

2007: \color{blue}{22295} (0.91) = \color{red}{20288.45}

2007:22295(0.91)=20288.45

2008: \color{red}{20288.45} (0.91) = \color{orange}{18462.49}

2008:20288.45(0.91)=18462.49

\text{Car value in 2008:}

Car value in 2008:

\$18500

$18500

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Determine whether a triangle can be formed with the given side lengths. If the side lengths
scoundrel [369]

Answer:

it can't form isosceles triangle cause any two sides of the triangle are not equal ,it can't form equalateral triangle cause 3 sides of the triangle are not equal and neither right angle triangle so triangle can't be formed

7 0
3 years ago
I don’t know how to do this one.
serious [3.7K]

Answer:

(a) The unit circle is centered at (0,0) with a radius of 1.

(b) The equation of a circle of radius <em>r</em>, with a center located at (0,0):

<em>x</em>²<em>+ y</em>² <em>= r</em>².

(c) (i) P(1,0)

    (ii) P(0,1)

    (iii) P(-1,0)

    (iv) P(0,-1)

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
In a single growing season at the smith family orchard, the average yield per apple tree is 150 apples when the number of trees
Mariana [72]

Answer:

100 trees should be planted per acre to maximize the total yield (15000 apples per acre)

Step-by-step explanation:

<u>Functions </u>

Expressing some quantities in terms of other(s) comes in handy to understand the behavior of the situations often modeled by those functions.

Our problem tells us about the smith family orchard, where the average yield per apple tree is 150 apples when the number of trees per acre is 100 (or less). But the average yield per tree decreases when more than 100 trees are planted. The rate of decrease is 1 for each additional tree is planted

Let's call x the number of trees planted per acre in a single growing season. We have two conditions when modeling:  when x is less than 100, the average yield per apple tree (Ay) is (fixed) 150.

Ay(x)=150\ ,\ x\leqslant 100

When x is more than 100:

Ay(x)=150-x\ ,\ 100< x\leqslant 150

The upper limit is 150 because it would mean the Average yield is zero and no apples are to be harvested

Part 1

We are asked what happens if the number of trees per acre was doubled, but we don't know what the original number was. Let's make it x=60

If x=60, then we must use the first function, and

Ay(60)=150

The yield per acre will be 150*60=9000 apples

If we doubled x to 120, we would have to use the second function

Ay(120)=150-x=30

The yield per acre will be 30*120=3600 apples

Note that doubling the number of trees would make the production decrease

If we started with x=30, then  

Ay(30)=150, and we would have 150*30=4500 apples per acre

We already know that for x=60 (the double of 30), our production will be 9000 apples per acre

This shows us that in some cases, increasing the number of trees is beneficial and in other cases, it is not

Part 2

The total yield is computed as

Y(x)=x.Ay(x)

This function will be different depending on the value of x

Y(x)=150x\ ,\ x\leqslant 100

Y(x)=150x-x^2\ ,\ 100< x\leqslant 150

To find the maximum total yield we take the first derivative

Y'(x)=150\ ,\ x\leqslant 100

Y'(x)=150-2x\ ,\ 100< x\leqslant 150

The first expression has no variable, so the total yield must be evaluated in the endpoints

Y(0)=0

Y(100)=15000

Now, the second expression contains variable, it will be set to 0 to find the critical point

150-2x=0

x=75

x is outside of the boundaries, we cannot find the maximum in this interval

Answer: 100 trees should be planted per acre to maximize the total yield (15000 apples per acre)

7 0
3 years ago
I need help please thanks
maksim [4K]

Answer:

Equation: \frac{4}{3}x - 3

Step-by-step explanation:

Slope = 4/3

Y-intercept = -3

Therefore;

Equation: y = mx + b

Equation: \frac{4}{3}x - 3

Hope this helps!

6 0
3 years ago
Joseph completes the paintings shown in 129 minutes. If he took the same amount of time to complete each painting, how much time
olga55 [171]
Depending on how many paintings there were you would divide that number by 129 to figure out how long it took to complete one painting. Hope this helps. 
6 0
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